Requirements for Platform Drainage
At railway platforms, drainage channels must meet strict requirements for safety and functionality. The design of the system also plays a role, although to a lesser extent.
Railway platforms are usually constructed with a slope from the platform edge to the center of the platform (low point). This is done to prevent water from reaching the electrified track. The slope towards the center of the platform also helps to prevent wheelchairs, strollers, luggage carts, or similar objects from rolling uncontrollably towards the platform edge. Additionally, by ensuring the rapid drainage of rainwater, the risk of slipping is reduced.
In some railway platforms, there may be restrictions on the construction height. Therefore, linear drainage systems in a shallow design are ideal for capturing and quickly draining rainwater. Platforms are often designed to accommodate a large number of passengers. The areas adjacent to the drainage systems are therefore large and mostly completely paved. It is necessary to safely collect and drain the precipitation. Additionally, the materials used, including drainage channels, should be electrically non-conductive. This requirement is specifically for the protection of travelers. In the event of an accident, electrified overhead lines with a voltage of 24 kV should not pose a danger to people present on the platform.
Compared to the requirements of safety and functionality, the design of drainage channels at railway stations and platforms plays a subordinate role. However, the external appearance of the station is associated with a certain reputation as a public area. The design of the systems should blend into the overall image of the station.